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AI Tools Index

512 real AI tools across 26 categories, ranked by popularity. Ranking is our editorial judgement of adoption and mindshare — tiers, not live download counts, and we say so rather than inventing precision. Tools with a Reviewed badge have a full HIMEXA review with scores and dated pricing.

All (512)Chat & assistants (46)Image generation (61)Video (44)Audio & voice (24)Music (20)Coding (49)Writing (20)Marketing & SEO (25)Productivity (16)Meetings & notes (12)Automation & agents (30)Research (14)Design (12)Data & ML platforms (34)Presentations (8)Customer support (11)Sales & outreach (14)Education (12)Legal & compliance (7)HR & recruiting (6)Finance (8)Healthcare (8)Translation (7)3D & AR (8)Search & knowledge (8)Security (8)

Household names

The tools that defined their category.
  1. ·
    ChatGPTChat & assistantsReviewed

    OpenAI's assistant — the product that made AI chat mainstream.

  2. ·
    ClaudeChat & assistantsReviewed

    Anthropic's assistant, strong at long documents, analysis and code.

  3. ·
    Google GeminiChat & assistants

    Google's assistant, woven through Search, Gmail and Android.

  4. ·
    Meta AIChat & assistants

    Meta's assistant inside WhatsApp, Instagram and Messenger.

  5. ·
    Microsoft CopilotChat & assistants

    Microsoft's assistant across Windows, Edge and Office.

  6. ·
    PerplexityChat & assistantsReviewed

    Answer engine that cites its sources as it responds.

Very popular

Widely adopted, regularly in the conversation.
  1. ·
    Character.AIChat & assistants

    Role-play chats with user-created characters.

  2. ·
    ChatGPT AtlasChat & assistants

    OpenAI's browser with ChatGPT built into every page.

  3. ·
    DeepSeekChat & assistantsReviewed

    Chinese lab whose open reasoning models shook up pricing.

  4. ·
    GrokChat & assistants

    xAI's assistant with live access to X posts.

  5. ·
    Le Chat (Mistral)Chat & assistants

    Mistral's fast assistant built on its own European models.

  6. ·
    Llama (Meta)Chat & assistantsReviewed

    Meta's open-weight model family behind countless products.

  7. ·
    Mistral AIChat & assistantsReviewed

    European lab shipping strong open-weight models.

  8. ·
    NotebookLMChat & assistantsReviewed

    Google's source-grounded notebook that answers from your documents.

  9. ·
    OllamaChat & assistantsReviewed

    Run open models locally with one command.

  10. ·
    PoeChat & assistants

    Quora's hub for chatting with many models under one subscription.

Established

Proven products with real user bases.
  1. ·
    ChaiChat & assistants

    Social platform for user-built chat personas.

  2. ·
    CohereChat & assistants

    Enterprise language models with strong retrieval focus.

  3. ·
    DoubaoChat & assistants

    ByteDance's consumer assistant, massive in China.

  4. ·
    DuckDuckGo AI ChatChat & assistants

    Anonymous access to several assistants via DuckDuckGo.

  5. ·
    Ernie BotChat & assistants

    Baidu's assistant on its ERNIE model line.

  6. ·
    GroqChat & assistants

    Custom silicon serving open models at extreme speed.

  7. ·
    HuggingChatChat & assistants

    Hugging Face's free front-end over open models.

  8. ·
    KimiChat & assistants

    Moonshot AI's long-context assistant, huge in China.

  9. ·
    LM StudioChat & assistants

    Desktop app for downloading and chatting with local models.

  10. ·
    Open WebUIChat & assistants

    Self-hosted chat interface for local and remote models.

  11. ·
    OpenRouterChat & assistants

    One API and chat over dozens of commercial and open models.

  12. ·
    PiChat & assistants

    Inflection's deliberately personal, conversational assistant.

  13. ·
    Qwen ChatChat & assistants

    Alibaba's assistant over the open Qwen model family.

  14. ·
    ReplikaChat & assistants

    Companion chatbot for ongoing personal conversation.

  15. ·
    TalkieChat & assistants

    Character companion app with huge mobile reach.

  16. ·
    Together AIChat & assistants

    Hosted inference and fine-tuning for open models.

  17. ·
    You.comChat & assistantsReviewed

    Search-plus-chat aimed at research and productivity.

Niche & emerging

Specialists and newer entrants worth knowing.
  1. ·
    AI21 LabsChat & assistants

    Jamba models and task-specific language APIs.

  2. ·
    AnythingLLMChat & assistants

    Self-hosted chat over your own documents and models.

  3. ·
    Brave LeoChat & assistants

    Privacy-focused assistant built into the Brave browser.

  4. ·
    ChatGLMChat & assistants

    Zhipu AI's bilingual assistant and open models.

  5. ·
    Copilot Pro (GitHub-less…)Chat & assistants

    Paid tier of Microsoft Copilot with Office integration.

  6. ·
    Fireworks AIChat & assistants

    Fast inference platform for open and custom models.

  7. ·
    JanChat & assistants

    Open-source local AI chat that keeps data on-device.

  8. ·
    KhojChat & assistants

    Open-source personal AI over your notes and documents.

  9. ·
    KindroidChat & assistants

    Personal AI companions with memory and voice.

  10. ·
    MstyChat & assistants

    Local-first chat app juggling many models and providers.

  11. ·
    NomiChat & assistants

    Companion AI focused on long-term memory.

  12. ·
    SesameChat & assistants

    Startlingly natural conversational voice (Maya).

  13. ·
    SillyTavernChat & assistants

    Power-user front-end for role-play chat with any model.

Honesty notes: tiers are editorial, reviewed regularly, and never sold — no tool can pay to move up. Official links point at each vendor's own domain; products rename and merge often in this market, so if a link has gone stale, tell us. For scored, dated evaluations see the reviewed directory.

AI Tools Index — 500+ Tools Ranked by Popularity — HIMEXA